On Halloween, 1898, a troubled yet determined medium named Koudelka is driven by the spirit of an unknown woman to the ominous Nemeton monastery. Once a place of worship, it evolved into a prison where the sentenced died horrible deaths. There, along with Edward, the adventurer, and James, the bishop, she will discover horror, danger, and adventure in the ruined and haunted abbey. Either they will solve their mysterious quests, or they will die trying.